A Pittsburgh pizza shop manager has been caught on film slamming a black woman's head repeatedly into the ground after she showed up at his restaurant asking to use the bathroom.

Mahmut Yilmaz, 41, was filmed struggling with Jade Smith, 34, at Pizza Mario in Pittsburgh, Pennsylvania, on Friday night at around 7.30pm.

Smith had been drinking with a friend in a bar next door and went to Pizza Mario after missing her bus to get home.

She asked if she could use the restroom but ignored Yilmaz when he told her no and attempted to push past him.

Mahmut Yilmaz, 41, was filmed throttling Jade Smith, 34, in Pizza Mario in Pittsburgh on Friday after she refused to leave despite him telling her she could not use the bathroom

Smith had just missed her bus home when she went into the pizza restaurant at 7.30pm to ask to use the bathroom. Yilmaz later told police he was trying to stop her from disturbing other customers when he put his hands on her. She is seen above before being thrown to the ground, staring into the camera as a customer filmed her

Mahmut Yilmaz, 41, was arrested on charges of aggravated assault and assault

The fight began by him restraining her as other customers, including one who had begun recording on their cell phone, watched.

As they stood in a standoff, Smith said repeatedly: 'Push me again, push me again.'

He shouted back: 'I said please!'

Yilmaz was then filmed slamming her back into the wall. The pair then fell to the floor, crashing into a table and chairs on their way.

He then appeared to repeatedly hit the woman's head off the ground, yelling: 'Why you not listen to me!' as he held her in a tight grip.

After a few seconds, several other pizza shop employees rushed over to break the pair up and escort Smith outside.

Yilmaz then tossed the woman to the ground and hit her head repeatedly off the hard floor as other customers watched in shock

Police were called and interviewed them both at the scene but neither told them about the fight, according to The Post Gazette.

Officers said Smith appeared 'disheveled' but had no obvious injuries.

However, they were called to hospital later that night to interview her. She said that in the hours since the incident, she had developed a strong headache.

Smith told them she had been diagnosed with a concussion and that she did not mention the fight because she could not remember it clearly.